EDI2GG464128V Datasheet, PDF (1/8 Pages) White Electronic Designs Corporation – 4MB SYNCHRONOUS CARD EDGE DIMM

White Electronic Designs
EDI2GG464128V
4MB SYNCHRONOUS CARD EDGE DIMM
FEATURES
4x128Kx64 Synchronous
Access Speed(s): TKHQV = 9.5, 10, 11, 12, 15ns
Flow-Through Architecture
Clock Controlled Registered Bank Enables (E1#,
E2#, E3#, E4#)
Clock Controlled Registered Address
Clock Controlled Registered Global Write (GW#)
Aysnchronous Output Enable (G#)
Internally self-timed Write
Gold Lead Finish
3.3V +10%, -5% Operation
Access Speed(s): tKHQV = 9.5, 10, 11, 12, 15ns
Common Data I/O
High Capacitance (30pf) drive, at rated Access
Speed
Single total array Clock
Multiple Vcc and GND
DESCRIPTION
The EDI2KG64128VxxD is a Synchronous SRAM,
60 position Card Edge DIMM (120 contacts) Module,
organized as 4x128Kx64. The Module contains eight
(8) Synchronous Burst Ram Devices, packaged in the
industry standard JEDEC 14mmx20mm TQFP placed on
a Multilayer FR4 Substrate. The module architecture is
defined as a Synchronous Only, Flow-Through, Early Write
Device. This module provides High Performance, Ultra
Fast access times at a cost per bit benefit over BiCMOS
Asynchronous SRAM based devices. As well as improved
cost per bit, the use of Synchronous or Synchronous Burst
devices or modules can ease the memory subsystem
design by reducing or easing the memory controller
requirement.
Synchronous operations are in relation to an externally
supplied clock, Registered Address, Registered Global
Write, Registered Enables as well as an Asynchronous
Output enable. All read and write operations to this module
are performed on Quad Words (64 bit operations).
Write cycles are internally self timed and are initiated by
a rising clock edge. This feature relieves the designer the
task of developing external write pulse width circuitry.
DQ0-DQ63
A015
E1#, E2#,
E3#, E4#
CK
GW#
G#
Vcc
Vss
NC
PIN NAMES
Input/Output Bus
Address Bus
Synchronous Bank Enables
Array Clock
Synchronous Global Write Enable
Asynchronous Output Enable
3.3V Power Supply
Ground
No Connect
*This product is subject to change without notice.
October 2004
Rev. 1
1
White Electronic Designs Corporation • [phone] • www.wedc.com